In 2006, there were 3,864 persons usually resident in Gulgong: 50.6% were males and 49.4% were females. Of the total population in Gulgong 3.2% were Indigenous persons, compared with 2.3% Indigenous persons in Australia. more

86.3% of persons usually resident in Gulgong stated they were born in Australia. Other common responses within Gulgong were: England 2.8%, New Zealand 0.8%, Germany 0.6%, Philippines 0.4% and Scotland 0.3%.

53.7% of persons aged 15 years and over usually resident in Gulgong were married, 27.6% never married, 12.3% separated or divorced and 6.3% widowed.

There were 1,105 families in Gulgong: 40.3% were couple families with children, 44.8% were couple families without children, 13.7% were one parent families and 1.3% were other families.

* statistcs taken from the 2006 Census for postal area 2852 conducted by the Australian Bureau of Statistics